Historical annual and monthly returns for Idexx Laboratories (IDXX).
For Idexx Laboratories (IDXX), the strongest completed calendar year was 2020, when the stock returned 91.4%, while its weakest was 2008, with a return of -38.5%. Across the 26 completed calendar years from 2000 through 2025, its average annual return was 25.6% and its compounded annual return was 21.8%. IDXX posted positive returns in 22 of those 26 years (85%). In 2025, the latest completed year, it returned 63.6%. In 2026 year to date, IDXX has returned -21.8%.
Returns are calculated from the adjusted daily closing prices for Idexx Laboratories (IDXX). Annual returns measure the percentage change between the final available trading prices of consecutive calendar years. Monthly returns use the corresponding month-end observations. Adjusted prices account for stock splits and distributions when supplied by the market-data provider. Results are nominal and are not adjusted for inflation.
